Zip4j是一个Java操作zip压缩格式的开源项目,功能强大而且使用方便,能完全满足Java操作Zip压缩文件。默认采用UTF-8编码,所以支持中文,同时也支持密码,而且支持多种压缩算法。
版本:zip4j_1.3.1.jar
http://www./zip4j/ 压缩 1、文件压缩 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test1.zip");
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- ArrayList filesToAdd = new ArrayList();
- filesToAdd.add(new File("c:\\ZipTest\\sample.txt"));
- filesToAdd.add(new File("c:\\ZipTest\\文件.doc"));
- filesToAdd.add(new File("c:\\ZipTest\\??.xls"));
- filesToAdd.add(new File("c:\\ZipTest\\ファイル.ppt"));
-
- ZipParameters parameters = new ZipParameters();
- parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
- parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
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- zipFile.addFiles(filesToAdd, parameters);
2、设置密码 --标准 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test2.zip");
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- ArrayList filesToAdd = new ArrayList();
- filesToAdd.add(new File("c:\\ZipTest\\sample.txt"));
- filesToAdd.add(new File("c:\\ZipTest\\文件.doc"));
- filesToAdd.add(new File("c:\\ZipTest\\??.xls"));
- filesToAdd.add(new File("c:\\ZipTest\\ファイル.ppt"));
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- ZipParameters parameters = new ZipParameters();
- parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
- parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
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-
- parameters.setEncryptFiles(true);
- parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_STANDARD);
- parameters.setPassword("test123!");
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- zipFile.addFiles(filesToAdd, parameters);
--AES - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test3.zip");
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- ArrayList filesToAdd = new ArrayList();
- filesToAdd.add(new File("c:\\ZipTest\\sample.txt"));
- filesToAdd.add(new File("c:\\ZipTest\\文件.doc"));
- filesToAdd.add(new File("c:\\ZipTest\\??.xls"));
- filesToAdd.add(new File("c:\\ZipTest\\ファイル.ppt"));
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- ZipParameters parameters = new ZipParameters();
- parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
- parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
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- parameters.setEncryptFiles(true);
- parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_AES);
- parameters.setAesKeyStrength(Zip4jConstants.AES_STRENGTH_256);
- parameters.setPassword("test123!");
-
- zipFile.addFiles(filesToAdd, parameters);
3、文件夹压缩 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test4.zip");
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- String folderToAdd = "c:\\ZipTest";
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- ZipParameters parameters = new ZipParameters();
- parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
- parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
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- zipFile.addFolder(folderToAdd, parameters);
4、将文件压缩到指定文件夹中 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test5.zip");
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- ArrayList filesToAdd = new ArrayList();
- filesToAdd.add(new File("c:\\ZipTest\\sample.txt"));
- filesToAdd.add(new File("c:\\ZipTest\\文件.doc"));
- filesToAdd.add(new File("c:\\ZipTest\\??.xls"));
- filesToAdd.add(new File("c:\\ZipTest\\ファイル.ppt"));
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- ZipParameters parameters = new ZipParameters();
- parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
- parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
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- parameters.setRootFolderInZip("test2/");
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- zipFile.addFiles(filesToAdd, parameters);
5、往ZIP中添加文件 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test1.zip");
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- ZipParameters parameters = new ZipParameters();
- parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
- parameters.setFileNameInZip("文件2.doc");
- parameters.setSourceExternalStream(true);
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- InputStream is = new FileInputStream("c:\\ZipTest\\文件2.doc");
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- zipFile.addStream(is, parameters);
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- is.close();
6、分割压缩文件 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test7.zip");
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- ArrayList filesToAdd = new ArrayList();
- filesToAdd.add(new File("c:\\ZipTest\\sample.txt"));
- filesToAdd.add(new File("c:\\ZipTest\\文件.doc"));
- filesToAdd.add(new File("c:\\ZipTest\\??.xls"));
- filesToAdd.add(new File("c:\\ZipTest\\ファイル.ppt"));
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- ZipParameters parameters = new ZipParameters();
- parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
- parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
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-
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- zipFile.createZipFile(filesToAdd, parameters, true, 65536);
7、创建ZIP流 - ArrayList filesToAdd = new ArrayList();
- filesToAdd.add(new File("c:\\ZipTest\\sample.txt"));
- filesToAdd.add(new File("c:\\ZipTest\\文件.doc"));
- filesToAdd.add(new File("c:\\ZipTest\\??.xls"));
- filesToAdd.add(new File("c:\\ZipTest\\ファイル.ppt"));
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- ZipOutputStream outputStream = new ZipOutputStream(new FileOutputStream(new File("c:\\ZipTest\\test8.zip")));
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- ZipParameters parameters = new ZipParameters();
- parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
- parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
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- parameters.setEncryptFiles(true);
- parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_AES);
- parameters.setAesKeyStrength(Zip4jConstants.AES_STRENGTH_256);
- parameters.setPassword("test123!");
-
- for (int i = 0; i < filesToAdd.size(); i++) {
- File file = (File)filesToAdd.get(i);
- outputStream.putNextEntry(file,parameters);
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- if (file.isDirectory()) {
- outputStream.closeEntry();
- continue;
- }
-
- InputStream inputStream = new FileInputStream(file);
- byte[] readBuff = new byte[4096];
- int readLen = -1;
- while ((readLen = inputStream.read(readBuff)) != -1) {
- outputStream.write(readBuff, 0, readLen);
- }
-
- outputStream.closeEntry();
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- inputStream.close();
- }
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- outputStream.finish();
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- outputStream.close();
8、从ZIP中删除文件 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test1.zip");
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- zipFile.removeFile("sample.txt");
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- if (zipFile.getFileHeaders() != null && zipFile.getFileHeaders().size() > 0) {
- zipFile.removeFile((FileHeader)zipFile.getFileHeaders().get(0));
- } else {
- System.out.println("This cannot be demonstrated as zip file does not have any files left");
- }
9、获取ZIP中文件一览 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test5.zip");
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- List fileHeaderList = zipFile.getFileHeaders();
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- for (int i = 0; i < fileHeaderList.size(); i++) {
- FileHeader fileHeader = (FileHeader)fileHeaderList.get(i);
- System.out.println("****File Details for: " + fileHeader.getFileName() + "*****");
- System.out.println("Name: " + fileHeader.getFileName());
- System.out.println("Compressed Size: " + fileHeader.getCompressedSize());
- System.out.println("Uncompressed Size: " + fileHeader.getUncompressedSize());
- System.out.println("CRC: " + fileHeader.getCrc32());
- System.out.println("************************************************************");
- }
解压 1、解压所有文件 -
- ZipFile zipFile = new ZipFile("c:\\ZipTest\\test1.zip");
- zipFile.extractAll("c:\\ZipTest1");
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-
- ZipFile zipFile2 = new ZipFile("c:\\ZipTest\\test2.zip");
- if (zipFile2.isEncrypted()) {
- zipFile2.setPassword("test123!");
- }
- List fileHeaderList = zipFile2.getFileHeaders();
- for (int i = 0; i < fileHeaderList.size(); i++) {
- FileHeader fileHeader = (FileHeader)fileHeaderList.get(i);
- zipFile2.extractFile(fileHeader, "c:\\ZipTest2\\");
- }
2、解压所有文件到流 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test2.zip");
- if (zipFile.isEncrypted()) {
- zipFile.setPassword("test123!");
- }
-
- List fileHeaderList = zipFile.getFileHeaders();
-
- for (int i = 0; i < fileHeaderList.size(); i++) {
- FileHeader fileHeader = (FileHeader)fileHeaderList.get(i);
- if (fileHeader != null) {
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- String outFilePath = "c:\\ZipTest3\\" + System.getProperty("file.separator") + fileHeader.getFileName();
- File outFile = new File(outFilePath);
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- if (fileHeader.isDirectory()) {
- outFile.mkdirs();
- continue;
- }
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- File parentDir = outFile.getParentFile();
- if (!parentDir.exists()) {
- parentDir.mkdirs();
- }
-
- ZipInputStream is = zipFile.getInputStream(fileHeader);
- OutputStream os = new FileOutputStream(outFile);
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- int readLen = -1;
- byte[] buff = new byte[4096];
-
- while ((readLen = is.read(buff)) != -1) {
- os.write(buff, 0, readLen);
- }
-
- os.close();
- os = null;
- is.close();
- is = null;
-
- UnzipUtil.applyFileAttributes(fileHeader, outFile);
-
- System.out.println("Done extracting: " + fileHeader.getFileName());
- } else {
- System.err.println("fileheader is null. Shouldn't be here");
- }
- }
3、解压单个文件 - ZipFile zipFile = new ZipFile("c:\\ZipTest\\test2.zip");
- if (zipFile.isEncrypted()) {
- zipFile.setPassword("test123!");
- }
-
- zipFile.extractFile("文件.doc", "c:\\ZipTest4\\");